FR2637995B1 - - Google Patents

Info

Publication number
FR2637995B1
FR2637995B1 FR8813760A FR8813760A FR2637995B1 FR 2637995 B1 FR2637995 B1 FR 2637995B1 FR 8813760 A FR8813760 A FR 8813760A FR 8813760 A FR8813760 A FR 8813760A FR 2637995 B1 FR2637995 B1 FR 2637995B1
Authority
FR
France
Prior art keywords
leaves
pct
encoded
words
sec
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
FR8813760A
Other languages
English (en)
French (fr)
Other versions
FR2637995A1 (enrdf_load_stackoverflow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomson Grand Public
Original Assignee
Thomson Grand Public
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Grand Public filed Critical Thomson Grand Public
Priority to FR8813760A priority Critical patent/FR2637995B1/fr
Priority to US07/499,283 priority patent/US5077760A/en
Priority to JP1511367A priority patent/JPH03503351A/ja
Priority to PCT/FR1989/000521 priority patent/WO1990004885A1/fr
Priority to EP89402831A priority patent/EP0365405B1/fr
Priority to AT89402831T priority patent/ATE104487T1/de
Priority to ES89402831T priority patent/ES2050829T3/es
Priority to DE68914579T priority patent/DE68914579T2/de
Priority to PT92018A priority patent/PT92018A/pt
Publication of FR2637995A1 publication Critical patent/FR2637995A1/fr
Application granted granted Critical
Publication of FR2637995B1 publication Critical patent/FR2637995B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
FR8813760A 1988-10-19 1988-10-19 Expired - Lifetime FR2637995B1 (enrdf_load_stackoverflow)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR8813760A FR2637995B1 (enrdf_load_stackoverflow) 1988-10-19 1988-10-19
JP1511367A JPH03503351A (ja) 1988-10-19 1989-10-10 可変長のコード化語の順序に従って同期語を認識するためのコード化方法
PCT/FR1989/000521 WO1990004885A1 (fr) 1988-10-19 1989-10-10 Procede de codage adapte a la reconnaissance de mots de synchronisation dans des suites de mots codes a longueurs variables
US07/499,283 US5077760A (en) 1988-10-19 1989-10-10 Encoding method adapted to the recognition of synchronization works in sequences of variable length encoded words
EP89402831A EP0365405B1 (fr) 1988-10-19 1989-10-13 Procédé de codage adapté à la reconnaissance de mots de synchronisation dans des suites de mots codés à longueurs variables
AT89402831T ATE104487T1 (de) 1988-10-19 1989-10-13 Verfahren zur kodierung, geeignet zur erkennung von synchronisations-worten in einer folge von kodierten worten, die mittels eines kodes mit variabler laenge kodiert sind.
ES89402831T ES2050829T3 (es) 1988-10-19 1989-10-13 Procedimiento de codificacion adaptado para el reconocimiento de palabras de sincronizacion en series de palabras codificadas de longitudes variables.
DE68914579T DE68914579T2 (de) 1988-10-19 1989-10-13 Verfahren zur Kodierung, geeignet zur Erkennung von Synchronisations-Worten in einer Folge von kodierten Worten, die mittels eines Kodes mit variabler Länge kodiert sind.
PT92018A PT92018A (pt) 1988-10-19 1989-10-18 Processo de codificacao adaptado para o reconhecimento de palavras de sincronizacao em sequencias de palavras codificadas com comprimentos variaveis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8813760A FR2637995B1 (enrdf_load_stackoverflow) 1988-10-19 1988-10-19

Publications (2)

Publication Number Publication Date
FR2637995A1 FR2637995A1 (enrdf_load_stackoverflow) 1990-04-20
FR2637995B1 true FR2637995B1 (enrdf_load_stackoverflow) 1990-11-23

Family

ID=9371165

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8813760A Expired - Lifetime FR2637995B1 (enrdf_load_stackoverflow) 1988-10-19 1988-10-19

Country Status (9)

Country Link
US (1) US5077760A (enrdf_load_stackoverflow)
EP (1) EP0365405B1 (enrdf_load_stackoverflow)
JP (1) JPH03503351A (enrdf_load_stackoverflow)
AT (1) ATE104487T1 (enrdf_load_stackoverflow)
DE (1) DE68914579T2 (enrdf_load_stackoverflow)
ES (1) ES2050829T3 (enrdf_load_stackoverflow)
FR (1) FR2637995B1 (enrdf_load_stackoverflow)
PT (1) PT92018A (enrdf_load_stackoverflow)
WO (1) WO1990004885A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0765002A (ja) * 1993-08-31 1995-03-10 Fuji Xerox Co Ltd 文書処理装置
US5661763A (en) * 1995-07-28 1997-08-26 Adtran, Inc. Apparatus and method for detecting programmable length bit pattern in serial digital data stream
JP3267142B2 (ja) * 1996-02-23 2002-03-18 ケイディーディーアイ株式会社 可変長符号生成装置
US6725244B1 (en) * 2000-02-25 2004-04-20 Sun Microsystems, Inc. Method and system for allocation of file descriptors
US8106797B2 (en) * 2007-11-30 2012-01-31 Comtech Ef Data Corporation Assigning codes to and repairing Huffman trees
EP3744057B1 (en) * 2018-01-26 2025-08-13 California Institute of Technology Systems and methods for communicating by modulating data on zeros
JP2022523149A (ja) * 2019-02-07 2022-04-21 カリフォルニア インスティチュート オブ テクノロジー チャネル障害の存在下で零点上にデータを変調することにより通信するシステム及び方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475174A (en) * 1981-09-08 1984-10-02 Nippon Telegraph & Telephone Public Corporation Decoding apparatus for codes represented by code tree
US4578800A (en) * 1982-07-12 1986-03-25 Yutaka Yasuda Synchronization circuit for a Viterbi decoder
US4539684A (en) * 1983-01-07 1985-09-03 Motorola, Inc. Automatic frame synchronization recovery utilizing a sequential decoder
GB8327084D0 (en) * 1983-10-11 1983-11-09 Gordon J Error correction decoder apparatus
JP2563239B2 (ja) * 1984-02-06 1996-12-11 松下電器産業株式会社 同期パタ−ン選定方法
US4641327A (en) * 1985-07-09 1987-02-03 Codex Corporation Frame synchronization in trellis-coded communication systems
US4899149A (en) * 1986-02-28 1990-02-06 Gary Kahan Method of and apparatus for decoding Huffman or variable-length coees
US4870695A (en) * 1987-03-20 1989-09-26 International Business Machines Corporation Compression and de-compression of column-interlaced, row-interlaced graylevel digital images
US4853696A (en) * 1987-04-13 1989-08-01 University Of Central Florida Code converter for data compression/decompression

Also Published As

Publication number Publication date
EP0365405A1 (fr) 1990-04-25
WO1990004885A1 (fr) 1990-05-03
DE68914579D1 (de) 1994-05-19
ATE104487T1 (de) 1994-04-15
FR2637995A1 (enrdf_load_stackoverflow) 1990-04-20
PT92018A (pt) 1990-04-30
JPH03503351A (ja) 1991-07-25
DE68914579T2 (de) 1994-07-21
EP0365405B1 (fr) 1994-04-13
ES2050829T3 (es) 1994-06-01
US5077760A (en) 1991-12-31

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Legal Events

Date Code Title Description
ER Errata listed in the french official journal (bopi)

Free format text: 16/90

ST Notification of lapse